NoIR orange (filter 67) sunglasses offer 100 percent ultraviolet protection, 45 percent light transmission and 100 percent blue light protection. They heighten contrast, feature maximum brightness and good visual acuity.
The small Spectrashield frame (#31) measures 133mm x 140mm x 44mm and has adjustable temples. The SpectraShield frame has a ledge at the top to keep the sun or light from beaming in and it has side shields of the same filter on the frame and offers complete protection from the sun and artificial lighting.
Filter 67 replaces filter 60 which had a 48% visible light transmission.
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